:root {
    /* Paleta de colores de V-Active y Tecnocas */
    --brand-green: #1a6b4a;
    --brand-green-light: #268b55;
    --brand-orange: #eb5b25;
    --brand-orange-hover: #d14a1a;
    --bg-color: #f8f9fa;
    --text-main: #333333;
    --text-muted: #6c757d;
    --card-border: #e2e8f0;
    --table-header-bg: #f8f9fa;
    --table-row-hover: #f1f5f9;
    --table-row-even: #fcfcfc;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
}

/* --- MODO OSCURO (Automático por sistema) --- */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --card-bg: #1e1e1e;
        --input-bg: #2d2d2d;
        --text-main: #e0e0e0;
        --text-muted: #a0a0a0;
        --card-border: #333333;
        --table-header-bg: #2c2c2c;
        --table-row-hover: #2a2a2a;
        --table-row-even: #1a1a1a;
        --brand-green: #2ab86f; /* Verde corporativo más brillante para resaltar en fondo oscuro */
    }
}

/* --- MODO OSCURO (Manual por clase CSS) --- */
body.dark-mode {
    --bg-color: #121212; --card-bg: #1e1e1e; --input-bg: #2d2d2d;
    --text-main: #e0e0e0; --text-muted: #a0a0a0; --card-border: #333333;
    --table-header-bg: #2c2c2c; --table-row-hover: #2a2a2a; --table-row-even: #1a1a1a;
    --brand-green: #2ab86f;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden; /* Evita doble scroll en ventanas nativas */
    background-color: var(--bg-color);
    color: var(--text-main);
}

h1, h2, h3 { color: var(--brand-green); font-weight: 600; }
h1 { text-align: center; margin-bottom: 30px; }

/* --- Layout Global (Dashboard) --- */
html { height: 100%; margin: 0; padding: 0; }

.dashboard-wrapper {
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    display: flex;
    margin: 0;
    padding: 0;
}

.main-content {
    flex: 1;
    overflow-y: auto !important;
    overflow-x: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0;
    margin: 0;
}

/* Layout general */
.container { max-width: 1200px; margin: 0 auto; background: var(--card-bg); padding: 24px; border-radius: 12px; box-shadow: 0 4px 12px rgba(0,0,0,0.03); }
.card, .device-card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 12px; padding: 24px; margin-bottom: 30px; box-shadow: 0 4px 12px rgba(0,0,0,0.03); }

/* Componentes Generales: Botones */
.btn, .btn-refresh { background-color: var(--brand-orange); color: white; border: none; padding: 10px 20px; font-size: 15px; font-weight: 500; border-radius: 8px; cursor: pointer; transition: background-color 0.2s ease, transform 0.1s ease; box-shadow: 0 4px 6px rgba(235, 91, 37, 0.2); display: inline-block; text-decoration: none; text-align: center; }
.btn:hover, .btn-refresh:hover:not(:disabled) { background-color: var(--brand-orange-hover); transform: translateY(-1px); }
.btn:active, .btn-refresh:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled, .btn-refresh:disabled { cursor: not-allowed; opacity: 0.6; }
.btn-clear { background-color: var(--text-muted); box-shadow: 0 4px 6px rgba(108, 117, 125, 0.2); }
.btn-clear:hover { background-color: #5a6268; }

/* Formularios y Filtros */
.filter-form { display: flex; gap: 15px; margin-bottom: 20px; align-items: flex-end; flex-wrap: wrap; background: var(--card-bg); padding: 15px; border-radius: 8px; border: 1px solid var(--card-border); }
.form-group { display: flex; flex-direction: column; }
.form-group label { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 5px; font-weight: bold; }
.form-control { padding: 10px 12px; border: 1px solid var(--card-border); background-color: var(--input-bg); color: var(--text-main); border-radius: 6px; font-size: 0.9rem; outline: none; transition: border-color 0.2s ease; }
.form-control:focus { border-color: var(--brand-green); }

/* Tablas (Grillas de datos) */
.table-responsive { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 0.9rem; min-width: 800px; }
th, td { border: 1px solid var(--card-border); padding: 12px; text-align: left; }
th { background-color: var(--table-header-bg); color: var(--text-main); font-weight: 600; white-space: nowrap; border-bottom: 2px solid var(--brand-green); }
tr:nth-child(even) { background-color: var(--table-row-even); }
tr:hover { background-color: var(--table-row-hover); }
.no-data { text-align: center; padding: 30px; color: var(--text-muted); font-style: italic; }

/* Componentes Específicos (Tarjetas de estado, slots, badges) */
.device-title { margin-top: 0; border-bottom: 1px solid var(--card-border); padding-bottom: 15px; display: flex; justify-content: space-between; align-items: center; font-size: 1.25em; font-weight: 600; }
.badge { background: var(--brand-orange); color: white; padding: 4px 12px; border-radius: 20px; font-size: 0.8em; font-weight: 500; letter-spacing: 0.5px; }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; margin-top: 20px; }
.slot-card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 10px; box-shadow: 0 2px 8px rgba(0,0,0,0.02); overflow: hidden; display: flex; flex-direction: column; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.slot-card:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0,0,0,0.06); }
.slot-header { background: var(--brand-green); color: #fff; padding: 12px 16px; font-weight: 500; font-size: 1em; }
.slot-body { padding: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; max-height: 350px; overflow-y: auto; background-color: var(--card-bg); }
.data-item { display: flex; flex-direction: column; background: var(--bg-color); padding: 8px 12px; border-radius: 6px; border: 1px solid transparent; }
.data-key { font-weight: 600; color: var(--text-muted); font-size: 0.7em; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.data-value { color: var(--text-main); font-size: 0.9em; word-break: break-word; font-weight: 500; }
.header-actions { text-align: center; margin-bottom: 30px; }

/* Estados de alerta/inactividad */
.stale-card { border-color: #e53e3e; }
.stale-header { background-color: #e53e3e; }
.stale-text { background-color: #fff5f5; border-color: #fed7d7; }
.stale-text .data-key, .stale-text .data-value { color: #c53030; }

/* Ajustes finales de Dark Mode (sombras e inactividad) */
@media (prefers-color-scheme: dark) {
    .stale-text { background-color: #3a1c1c; border-color: #5c2b2b; }
    .stale-text .data-key, .stale-text .data-value { color: #fc8181; }
    .container, .card, .device-card, .slot-card { box-shadow: 0 4px 12px rgba(0,0,0,0.4); }
}
body.dark-mode .stale-text { background-color: #3a1c1c; border-color: #5c2b2b; }
body.dark-mode .stale-text .data-key, body.dark-mode .stale-text .data-value { color: #fc8181; }
body.dark-mode .container, body.dark-mode .card, body.dark-mode .device-card, body.dark-mode .slot-card { box-shadow: 0 4px 12px rgba(0,0,0,0.4); }

/* --- AI Chat Widget Global --- */
.ai-widget-btn {
    position: fixed; bottom: 20px; right: 20px; width: 60px; height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%; box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 30px; cursor: pointer; z-index: 1000;
    transition: transform 0.3s;
}
.ai-widget-btn:hover { transform: scale(1.1); }

.ai-chat-window {
    position: fixed; bottom: 90px; right: 20px; width: 350px; height: 500px;
    background: white; border-radius: 12px; box-shadow: 0 5px 25px rgba(0,0,0,0.2);
    z-index: 1000; display: none; flex-direction: column; overflow: hidden;
    border: 1px solid #e0e0e0;
}
.ai-chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 15px; color: white; display: flex; justify-content: space-between; align-items: center;
}
.ai-chat-body {
    flex: 1; padding: 15px; overflow-y: auto; background: #f9f9f9;
    display: flex; flex-direction: column; gap: 10px;
}
.ai-chat-input-area {
    padding: 10px; border-top: 1px solid #eee; background: white; display: flex;
}
.ai-chat-input-area input { flex: 1; padding: 8px; border: 1px solid #ddd; border-radius: 20px; outline: none; }
.ai-chat-input-area button { background: none; border: none; color: #764ba2; font-size: 1.2rem; margin-left: 10px; cursor: pointer; }
.msg-bubble { max-width: 80%; padding: 8px 12px; border-radius: 12px; font-size: 0.9rem; line-height: 1.4; white-space: pre-wrap; }
.msg-user { align-self: flex-end; background: #764ba2; color: white; border-bottom-right-radius: 2px; }
.msg-ai { align-self: flex-start; background: #e9ecef; color: #333; border-bottom-left-radius: 2px; }
.typing-indicator { font-style: italic; color: #999; font-size: 0.8rem; margin-left: 10px; display: none; }

/* --- Help Side Panel Global --- */
.help-side-panel {
    position: fixed; top: 0; right: -400px;
    width: 350px; height: 100vh;
    background: var(--card-bg);
    box-shadow: -5px 0 25px rgba(0,0,0,0.15);
    z-index: 2050; display: flex; flex-direction: column;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 1px solid var(--card-border);
}
.help-side-panel.open { right: 0; }
.help-side-panel-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--brand-green) 0%, var(--brand-green-light) 100%);
    color: white; display: flex; justify-content: space-between; align-items: center;
}
.help-side-panel-header h3 { margin: 0; color: white; font-size: 1.2rem; }
.help-side-panel-header .close-help { 
    background: none; border: none; color: white; 
    font-size: 1.8rem; cursor: pointer; line-height: 1; 
}
.help-side-panel-body { padding: 20px; overflow-y: auto; flex: 1; font-size: 0.95rem; line-height: 1.6; }